Tectonic and magmatic controls on hydrothermal activity in the Woodlark Basin

Tectonic, Magmatic, Hydrothermal and Biological Segmentation of Mid-Ocean Ridges

Active continental extension : The Woodlark Basin

n October 1995, a four-day multi channel seismic and bottom sampling survey was conducted aboard the R/V Ewing in the Pacific’s western Woodlark Basin. This site augmentation effort, supported by USSSP, was associated with JOIDES Proposal #447. New data from this survey provide further evidence for active extension on a low-angle (~25) normal fault but do not support a metamorphic core complex ...

Quantitative assessment of relative tectonic activity in the Alamarvdasht river basin, south of Iran

Tectonic processes are major factors controlling landform development in tectonically active areas. In order to evaluate quantitative measurement of tectonic activities in the Alamarvdasht basin in the south of Iran, six different morphological indices including stream-gradient index (SL), drainage basin asymmetry (Af), hypsometric integral (Hi), valley floor width-valley height ratio (Vf), dra...

Magmatic and Tectonic Evolution of Southern Tibet and the Himalaya

The Himalaya-Tibetan orogen has become the paradigm for continental collision and is central to deciphering continental tectonics. Neogene extension in the orogen is not predicted by plate tectonic theory, and its significance is widely debated. In the Himalaya, north-south extension is restricted to the Southern Tibetan Detachment System (STDS), which juxtaposes the High Himalayan Crystalline ...

Quantifying climatic and tectonic controls on hillslopes

Hillslopes in humid regions are typically convex to concave in profi le and have a relatively thick, continuous regolith cover. Conversely, hillslopes in arid regions are typically cliff-dominated and have a relatively thin, discontinuous regolith cover. The difference between these two end-member slope forms is classically attributed to climate, but climate, tectonics, and lithology all play a...